Welcome to the SQL MCQs Page

Dive deep into the fascinating world of SQL with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of SQL, a crucial aspect of DBMS. In this section, you will encounter a diverse range of MCQs that cover various aspects of SQL, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within DBMS.

Check out the MCQs below to embark on an enriching journey through SQL. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of DBMS.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of SQL. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

SQL MCQs | Page 36 of 38

Explore more Topics under DBMS

01

DBMS Basics

02

Data Models

03

The Entity Relationship Approach

04

Relational Databases

05

Data Storage and Querying

06

Relational Algebra

07

Normalization

08

Storage and File Structures

09

Indexing and Hashing

10

Transactions

11

Concurrency Control

12

Recovery System

13

Distributed Databases

14

Data Warehousing and Data Mining

15

RDBMS

16

Advanced SQL

17

SQL Queries,Constraints and Triggers

Q351.

State true or false: Any attribute which is present in the having clause without being aggregated must not be present in the group by clause.

True

False

May be

Can't say

Discuss

Answer: (b).False

Q352.

State true or false: We can rename the resulting attribute after the aggregation function has been applied

True

False

May be

Can't say

Discuss

Answer: (a).True

Q353.

Which keyword is used to rename the resulting attribute after the application of the aggregation function?

rename

replace

Discuss

Answer: (b).as

Q354.

What values does the count(*) function ignore?

Repetitive values

Null values

Characters

Integers

Discuss

Answer: (b).Null values

Q355.

What is a subquery?

A subquery is a select-from-where expression that is nested within another query

A subquery is any query that is nested within another query

A subquery is a relation that is externally specified which can be used to handle data in queries

A subquery is a condition that excludes all the invalid tuples from the database

Discuss

Answer: (a).A subquery is a select-from-where expression that is nested within another query

Q356.

If a set is a collection of values given by the select clause, The ______ connective tests for set membership

within

include

under

Discuss

Answer: (d).in

Q357.

State true or false : Nested Subqueries cannot be used for comparing two different sets

True

False

May be

Can't say

Discuss

Answer: (b).False

Q358.

What is the result of the following query?

SELECT studname
FROM college
WHERE marks &gt; SOME (SELECT marks
                                        FROM student
                     WHERE SECTION = 'c');

The query gives all the studnames for which marks are greater than all the students in section c

The query gives all the studnames for which the marks are greater than at least on student in section c

The query gives all the studnames for which the marks are less than all the students in section c

The query is syntactically incorrect

Discuss

Answer: (b).The query gives all the studnames for which the marks are greater than at least on student in section c

Q359.

The ________ comparison checker is used to check “each and every” condition

all

and

every

each

Discuss

Answer: (a).all

Q360.

The ______ construct returns true if a given tuple is present in the subquery.

not exists

present

not present

exists

Discuss

Answer: (d).exists

Page 36 of 38

Welcome to the SQL MCQs Page

SQL MCQs | Page 36 of 38

Explore more Topics under DBMS

DBMS Basics

Data Models

The Entity Relationship Approach

Relational Databases

Data Storage and Querying

Relational Algebra

Normalization

Storage and File Structures

Indexing and Hashing

Transactions

Concurrency Control

Recovery System

Distributed Databases

Data Warehousing and Data Mining

RDBMS

Advanced SQL

SQL Queries,Constraints and Triggers

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